diff --git a/cli.php b/cli.php
index 9a4056a..f71378c 100644
--- a/cli.php
+++ b/cli.php
@@ -196,14 +196,18 @@ class cli
     if (in_array ("-", $argv))
     {
       $tab = array_keys ($argv, "-");
-      $key = reset ($tab);
-      $argv[$key] = file_get_contents ("php://stdin");
+      $keyStdIn = reset ($tab);
+      $dataStdIn = file_get_contents ("php://stdin");
+      $argv[$keyStdIn] = $dataStdIn;
     }
 
     // Convert "toto=ror&ypyp=oo" arg to array("toto"=>"ror","ypyp"=>"oo")
     // (Array management in CLI)
     foreach ($argv as $key=>$arg)
     {
+      // Don't modify the stdin
+      if ($key === $keyStdIn)
+        continue;
       $pairs = explode('&', $arg);
 
       foreach($pairs as $pair) {